Talk:GHZ experiment

A couple of questions:

1. Why should there necessarily be only the one hidden variable λ? In a paper I've just glanced through (Greenberger, Daniel M, “Two-particle versus three-particle EPR experiments”, Annals of the New York Academy of Sciences 755, 585-599 (1995)) they allow for three hidden variables, though (for some reason I have not yet fathomed) restricted so that the sum is zero.

2. Has the QM prediction been experimentally verified?

Caroline Thompson 18:02, 20 Aug 2004 (UTC)

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